package com.hd.homework0412.dao;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.hd.homework0412.entity.Product;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;
@Mapper
public interface ProductDao extends BaseMapper<Product> {
    public List<Product> topThree();
}
